| MediaTek MT6397/MT6323 Multifunction Device Driver |
| |
| MT6397/MT6323 is a multifunction device with the following sub modules: |
| - Regulator |
| - RTC |
| - Audio codec |
| - GPIO |
| - Clock |
| - LED |
| - Keys |
| - Power controller |
| |
| It is interfaced to host controller using SPI interface by a proprietary hardware |
| called PMIC wrapper or pwrap. MT6397/MT6323 MFD is a child device of pwrap. |
| See the following for pwarp node definitions: |
| ../soc/mediatek/pwrap.txt |
| |
| This document describes the binding for MFD device and its sub module. |
| |
| Required properties: |
| compatible: |
| "mediatek,mt6323" for PMIC MT6323 |
| "mediatek,mt6358" for PMIC MT6358 |
| "mediatek,mt6397" for PMIC MT6397 |
| |
| Optional subnodes: |
| |
| - rtc |
| Required properties: Should be one of follows |
| - compatible: "mediatek,mt6323-rtc" |
| - compatible: "mediatek,mt6358-rtc" |
| - compatible: "mediatek,mt6397-rtc" |
| For details, see ../rtc/rtc-mt6397.txt |
| - regulators |
| Required properties: |
| - compatible: "mediatek,mt6323-regulator" |
| see ../regulator/mt6323-regulator.txt |
| - compatible: "mediatek,mt6358-regulator" |
| see ../regulator/mt6358-regulator.txt |
| - compatible: "mediatek,mt6397-regulator" |
| see ../regulator/mt6397-regulator.txt |
| - codec |
| Required properties: |
| - compatible: "mediatek,mt6397-codec" or "mediatek,mt6358-sound" |
| - clk |
| Required properties: |
| - compatible: "mediatek,mt6397-clk" |
| - led |
| Required properties: |
| - compatible: "mediatek,mt6323-led" |
| see ../leds/leds-mt6323.txt |
| |
| - keys |
| Required properties: |
| - compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys" |
| see ../input/mtk-pmic-keys.txt |
| |
| - power-controller |
| Required properties: |
| - compatible: "mediatek,mt6323-pwrc" |
| For details, see ../power/reset/mt6323-poweroff.txt |
| |
| - pin-controller |
| Required properties: |
| - compatible: "mediatek,mt6397-pinctrl" |
| For details, see ../pinctrl/pinctrl-mt65xx.txt |
| |
| Example: |
| pwrap: pwrap@1000f000 { |
| compatible = "mediatek,mt8135-pwrap"; |
| |
| ... |
| |
| pmic { |
| compatible = "mediatek,mt6397"; |
| |
| codec: mt6397codec { |
| compatible = "mediatek,mt6397-codec"; |
| }; |
| |
| regulators { |
| compatible = "mediatek,mt6397-regulator"; |
| |
| mt6397_vpca15_reg: buck_vpca15 { |
| regulator-compatible = "buck_vpca15"; |
| regulator-name = "vpca15"; |
| regulator-min-microvolt = <850000>; |
| regulator-max-microvolt = <1400000>; |
| regulator-ramp-delay = <12500>; |
| regulator-always-on; |
| }; |
| |
| mt6397_vgp4_reg: ldo_vgp4 { |
| regulator-compatible = "ldo_vgp4"; |
| regulator-name = "vgp4"; |
| regulator-min-microvolt = <1200000>; |
| regulator-max-microvolt = <3300000>; |
| regulator-enable-ramp-delay = <218>; |
| }; |
| }; |
| }; |
| }; |
